Industrial Managed Ethernet Switch 1000M 4xGigabit + 4xSFP DIN-Rail
-40°C to 80°C
Product Overview:
The LNK-GYM7404G-SFP Series represents E-link's advanced industrial-grade managed Ethernet switch, featuring 4× 10/100/1000Base-TX RJ45 ports and 4× 100/1000Base-X SFP fiber slots. This ruggedized network switch delivers high-speed data transmission, flexible media options, and reliable
performance for demanding industrial environments.
Key Features & Benefits:
Hybrid Port Configuration
4× Gigabit copper ports for local device connectivity
4× SFP fiber slots supporting long-distance optical transmission (up to 120km)
Auto-negotiation on all ports for plug-and-play operation
Industrial-Grade Reliability
Wide temperature operation (-40°C to +80°C)
Dual power inputs (12-48V DC) with polarity protection
Fanless, metal housing with IP40 protection rating
Advanced Networking Capabilities
Layer 2 management (VLAN, QoS, RSTP)
16K jumbo frame support for data-intensive applications
8K MAC address table for high-density deployments
Technical Specifications:
Switching capacity: 16Gbps
Power consumption: <12W typical
Surge protection: 4KV on power/Ethernet
Certifications: CE, FCC, RoHS, IEC 61850-3
Product Features
1. High-Speed Fiber Optic Connectivity
✔ Quad 100/1000BASE-X SFP Slots - Auto-detects SC/FC/ST/LC fiber modules with single/dual fiber transmission support
✔ Flexible Media Options - Supports both multi-mode (2km) and single-mode (120km) fiber connections
2. Advanced Networking Performance
✔ 10K Jumbo Frame Support - Optimizes throughput for industrial video surveillance and data-intensive IIoT applications
✔ IPv6/IPv4 Dual Protocol Stack - Ensures future-proof network compatibility
✔ 8K MAC Address Capacity - Handles high-density industrial device deployments
3. Industrial-Grade Protection & Reliability
✔ 8KV Surge Protection - Superior defense against power surges on both Ethernet and power interfaces
✔ Reverse Polarity Protection - Safeguards against incorrect DC power connections (12-48V)
✔ Rugged Metal Enclosure - Fanless, IP40-rated design for harsh environment operation
4. Energy Efficiency & Smart Management
✔ IEEE 802.3az Energy Efficient Ethernet - Reduces power consumption by up to 70% during idle periods
✔ Comprehensive LED Indicators - Provides real-time monitoring of port status, power, and fiber links
✔ DHCP Support (RFC 1541/1542) - Simplifies network configuration in large-scale deployments
5. Flexible Installation Options
✔ DIN-Rail or Wall Mountable - Space-saving industrial mounting solutions
✔ Extended Temperature Range - Reliable operation from -40°C to +80°C (-40°F to +176°F)
6. Layer 2 Management Features
✔ VLAN Support - Enables secure network segmentation
✔ QoS Prioritization - Ensures mission-critical data transmission
✔ RSTP Protocol - Provides network redundancy (sub-50ms failover)
Application Scenarios
1. Industrial Automation & Smart Manufacturing
• Deploys as mission-critical network infrastructure in Industry 4.0 environments, connecting PLCs, HMIs, and robotic controllers through hybrid copper-fiber backbone
• Enables deterministic data transmission for SCADA systems in petrochemical plants, water treatment facilities, and automated
production lines
• Supports real-time machine vision systems with low-latency 10K jumbo frames for quality inspection applications
2. Intelligent Transportation Systems (ITS)
• Provides ruggedized networking for roadside communication units (RSUs), traffic signal controllers,
and electronic toll collection (ETC) systems
• Facilitates long-haul fiber connectivity (up to 120km) for tunnel surveillance networks and bridge monitoring systems
• Delivers 8KV surge-protected connectivity for harsh roadside environments with extended temperature tolerance (-40°C to +80°C)
3. Smart City & Critical Infrastructure
• Powers urban surveillance networks with Gigabit copper ports for 4K IP cameras and ANPR systems
• Enables fiber-optic backhaul through quad SFP slots (SC/FC/ST/LC compatible)
• Supports DHCP-enabled network expansion for municipal WiFi hotspots and IoT edge devices
4. Energy & Utility Sector Deployments
• Complies with IEC 61850-3 standards for substation automation and smart grid communications
• Provides dual power input redundancy for 24/7 operation in power distribution stations
• Withstands extreme environmental conditions in oil field operations and renewable energy plants
5. Military & Defense Communications
• Meets MIL-STD-810G specifications for field-deployable networking in mobile command centers
• DIN-rail mounted in armored vehicles and border surveillance systems
• EMC/EMI protected for electronic warfare environments
Technical Compliance & Certifications:
✓ IEEE 802.3/3u/3z compliant Ethernet transmission
✓ CE/FCC/RoHS certified for global deployments
✓ IP40-rated enclosure protects against dust and particulate ingress
✓ VLAN/QoS/RSTP enabled for network traffic optimization
Technical Indexes
| Physical Port |
| RJ45 port and speed | 4x10/100/1000Base-TX |
| Fiber port and speed | 4x100/1000Base-FX SFP (Dual Mode, Auto Detection) |
| Power Information |
| Power access mode | Phoenix terminal, DC seat |
| Redundant power input | DC 9-56V / DC5V |
| Physical Property |
| Protection grade | IP40 aluminum case |
| Dimensions | 138mm x 106mm x 41mm (L x W x H) |
| Installation mode | DIN Rail/Wall-mountable |
| Weight | 700g |
| Working Environment |
| Operating Temperature | -40℃~80℃ |
| Operating Humidity | 5%~90% non-condensing |
| Storage Temperature | -40℃~85℃ |
| Warranty |
| MTBF | 500,000 hours |
| Defects Liability Period | 5-year warranty, lifetime technical support |
Ordering Information
| Model | Description |
| LNK-GYM7404G-SFP | Managed 4-Port 10/100/1000Base-T + 4-Port 100/1000Base-X SFP
Ethernet Switch |
| SFP Options | ► SFP option. Please select your SFP on our SFP Options Page
(Industrial SFP). |
| ► SFP module is to be purchased separately. |
| Mounting Options | ► Default DIN-Rail Bracket installed; Wall Mount Bracket is
included. |
| Power Options | ►24W/1A 24VDC DIN-Rail Power Supply. Open Wire for Terminal Block. |
| ► Power Supply is to be purchased separately. |
Dimension
Application Diagram Display
